6( PHYSIOLOGICAL SEKIES. 



B. 61. The counterpart of the preceding preparation, divided 

 horizontally, and exhibiting a disposition of the outer 

 ligaraentous fibres in concentric circles, similar to the inter- 

 vertebral substances of the spine. 0. C. 264. Hunterian. 



B. 62. Right tempcro-maxillary joint of u Horse (Eytuis caballus). 

 The joint-cavity has been opened from behind to show the 

 slightly curved character of the articular surfaces and 

 the thin plate of fibro-cartilage intersposed between them. 

 The cartilage assists in adapting the articular surfaces to 

 one another during the complicated rotary and gliding 

 movements of which the jaw is capable. 



Chauveau & Fleming, 'Anatomy of the Domestic Animals/ 

 1873, p. 138. 



B. 63. A similar preparation of the left temporo-maxillary joint 

 of a Sheep (Om arles}. The surfaces of articulation are 

 more flattened than in the Horse, and eminently adapted 

 for gliding movements. Two slips from the masseter are 

 attached to the antero-lateral surface of the capsule; one 

 near its upper border, the other where it is attached to the 

 interarticular substance. 



B. 64. A vertical and longitudinal section of part of the lower jaw 

 and temporal bone of a young Lion (Felis leo), exhibiting 

 the interarticular substance extending through the whole 

 of the joint, and dividing it into two synovial cavities. 

 0. C. 258. Hunterian. 



B. 65. The corresponding section of the same parts, showing the 

 similar conditions. 0. C. 259. Hunterian. 



B. 66. A vertical and transverse section of part of the lower jaw 

 and temporal bone of a Lion, showing the extent of the 

 joint in that direction and the form of the interarticular 

 substance, convex from side to side above, concave below. 

 0. C. 260. Hunterian. 



B. 67. A vertical section of part of the temporal bone and rainus 

 of the lower jaw of a Human subject, exhibiting the forms 



